This is a longshot but I have a friend I blocked by accident. Theres no system to search for gamer tags rather then just trying different combinations of the one you "know". I called customer support asking for who was on my block list but they said they couldn't give me it. I know its possible but I guess they just wont go through the trouble. So as a last resort I come to the community to ask if you know of anyone with a gamer tag similar to [mod removed]. I've tried many different combinations but I can't seem to find it. I know that he uses numbers and spaces in it for the words, thats my only problem.